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Superheated steam generation device and thermal decomposition system using same

a technology of superheated steam and generating equipment, which is applied in the direction of chemistry apparatus and processes, lighting and heating apparatus, biofuels, etc., can solve the problems of incomplete pyrolysis of wood biomass, and achieve the effect of effectively pyrolysis, excellent heat transfer property, and large heat capacity

Inactive Publication Date: 2020-01-23
JISSEN KANKYO KENKYUSHO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present patent is about a way to generate high-temperature steam called superheated steam. This can be useful in a pyrolysis system that breaks down hydrocarbon molecules. The superheated steam has a larger heat capacity and is oxygen-free, which makes it easier to transfer heat to the hydrocarbon molecules and help them break down. The superheated steam is generated using a special design that increases the area where the steam comes into contact with the pipe's wall, effectively using the steam's heat capacity. Overall, this technology allows for better and more efficient production of superheated steam.

Problems solved by technology

Also, when the combustion heat of the property stable fuel is directly transferred to the wood biomass, since flue gas which includes the combustion heat includes oxygen, there is a risk of incomplete pyrolysis of the wood biomass.

Method used

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  • Superheated steam generation device and thermal decomposition system using same
  • Superheated steam generation device and thermal decomposition system using same
  • Superheated steam generation device and thermal decomposition system using same

Examples

Experimental program
Comparison scheme
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first embodiment

[0024]A superheated steam generating portion 1 as “a superheated steam generating apparatus” according to the first embodiment is applied to a biomass fuel manufacturing system 5 as “a pyrolysis system” shown in FIG. 1. The biomass fuel manufacturing system 5 recovers fluid generated by heat treatment of biomass as biomass fuel which are combustible valuables VL1, VL2, VL3, VG2 and VG3, and recovers a solid remainder as a carbon valuable VS1. Here, as the biomass, for example, botanical resources such as Jatropha (Jatropha curcas), cottonseed, soybean, safflower, rapeseed, common flax, castoroil plant, Japanese wax tree, olive, sesame, camellia, peanut, African oil palm, oil palm, coconut palm, coffee and sunflower, animal resources such as fish, jellyfish, and so on, and waste including hydrocarbon compounds such as vegetable waste, plastic waste and household waste are listed.

[0025]The biomass fuel manufacturing system 5 comprises a superheated steam supply portion 10, a pyrolysis...

second embodiment

[0078]A superheated steam generating apparatus according to the second embodiment will be explained with reference to FIGS. 4A, 4B and 5. In the second embodiment, the shape of the superheated steam generating pipe is different from that in the first embodiment.

[0079]The superheated steam generating portion according to the second embodiment is applied to the biomass fuel manufacturing system comprising the pyrolysis portion 20, the carbide collecting portion 25, the separating portion 30, a purification portion 55 and the retaining portion 40.

[0080]FIGS. 4A, 4B show a cross-sectional view of a superheated steam generating pipe 52 included by the superheated steam generating portion according to the second embodiment.

[0081]The superheated steam generating pipe 52 includes the cylinder potion 120 and four protrusions 521, 522, 523 and 524. The cylinder portion 120 and the protrusions 521, 522, 523 and 524 are integrally made of a material such as Inconel (registered trademark) or HAS...

third embodiment

[0095]A superheated steam generating apparatus according to the third embodiment will be explained with reference to FIGS. 6A and 6B. In the third embodiment, the shape of the superheated steam generating pipe is different from that in the first embodiment.

[0096]The superheated steam generating portion according to the third embodiment is applied to the biomass fuel manufacturing system comprising the pyrolysis portion 20, the carbide collecting portion 25, the separating portion 30, the purification portion 35 and the retaining portion 40.

[0097]FIGS. 6A, 6B show a cross-sectional view of a superheated steam generating pipe 62 included in the superheated steam generating portion according to the third embodiment.

[0098]The superheated steam generating pipe 62 includes the cylinder potion 120 and four protrusions 621, 622, 623 and 624. The cylinder portion 120 and the protrusions 621, 622, 623 and 624 are integrally made of a material such as Inconel (registered trademark) or HASTELLO...

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Abstract

A superheated steam generating apparatus (12) is made of a material capable of generating heat upon energization. The superheated steam generating apparatus (12) comprises a superheated steam generating pipe (12) which includes a flow path (129) in which steam can flow and transfers the heat to the steam in the flow path (129) to generate superheated steam. In the superheated steam generating apparatus (12), a length of a cross-sectional shape of a wall forming the flow path (129) of the superheated steam generating pipe (12) is longer than a length of a circumference of an exact circle having a same sectional area as a sectional area of the flow path (129).

Description

CROSS REFERENCETO RELATED APPLICATION[0001]This application is based on Japanese Patent Application No. 2017-042705, filed on Mar. 7, 2017, which is incorporated by reference herein.TECHNICAL FIELD[0002]The present disclosure relates to a superheated steam generating apparatus and a pyrolysis system using the same.BACKGROUND ART[0003]Conventionally, a biomass pyrolysis system which recovers combustible valuables constituted by a hydrocarbon compound generated by pyrolysis of biomass has been known. For example, Patent Reference 1 discloses a biomass pyrolysis system which can pyrolyze wood biomass using combustion heat ofpropertystable fuel with stable property such as fossil fuel including coal, shale gas, petroleum and heavy oil, or blast furnace gas generated in a blast furnace, as a heat source.REFERENCES OF PRIOR ARTSPatent Reference[Patent Reference 1][0004]Japanese Patent Application Publication No. 2014-205730SUMMARY OF INVENTION[0005]However, in the biomass pyrolysis system...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C10B23/00F22G1/16F22G5/00C10B47/44C10B53/02
CPCC10B47/44F22G1/165C10B53/02F22G5/00C10B23/00B01J20/048B01J20/20B01J20/28011B01J20/2808B01J2220/485B01J2220/4875B01J2220/603C10B49/04C10B57/02C10G1/002C10G1/02C10K1/04C10K1/32C01B32/318C01B32/336C01B32/90F22B1/282Y02E50/10
Inventor MIZUNO, HISASHI
Owner JISSEN KANKYO KENKYUSHO CO LTD